With some proper setup, you could get quite a few procs from this minions effect, but most of the time i don't think this will be all that helpful. At least it works as a psychological taunt, i suppose.
You play this when you have a few minions you plan on trading. Pretty easy to get a +2/+2 to each minion in your hand tbh. That makes Omega Agent sooo much better(i already think thats an underrated card)
Significantly better than the rogue version of this gimmick. Just like every other set. I can see this maybe finding a home after rotation because it has synergy with token based aggro decks. Something that is almost always relevant in the meta. It makes sense for warlock flavor wise even if it's bad. Of course I could be wrong and battlecry combo rogue could be tier 1. OMEGALUL
Just admit it Blizzard. Warlock and Rogue are both just MTG's black split in half and that is why one half is always getting the meme end of the stick.
Bad card, but meh. We will still get some powerful tools, so 1 or 2 bad ones won't be an issue.
Though I have to admit I like the flavour of this minion and of the spirits in general. This is a vampire bat, which feeds on the corpses of our minions. Usher of Souls never saw any competitive play and she had a good body. The spirit may be cheap, but its effect is not efficient enough.